Mark Hamblin / 2020VISION / Research scientists fitting satellite transmitter to Hen harrier chick (Circus cyaneus) for tracking movements after fledging. Glen Tanar Estate, Grampian, Scotland, UK, June 2011. Winner, documentary...
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Juergen Freund / Chambered nautilus (Nautilus pompilius) with radio transmitter, Indo-pacific
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Juergen Freund / Richard Fitzpatrick releases Grey reef shark {Carcharhinus amblyrhynchos} after inserting transmitter into its belly, as part of the Coral Reef census, Lizard Island, Queensland, Australia, April 2008
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Tim Edwards / Transmitter change on female kakapo. Little Barrier Is. NZ Rarest, heaviest bird in world>> Pictures taken Sept 91 high on one of the volcanic mountains of the island. Nocturnal habit unusual for parr...
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Gabriel Rojo / Southern elephant seal (Mirounga leonina) female with camera and transmitter. Caleta Valdes, Valdes Peninsula, Chubut, Patagonia, Argentina.
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Gabriel Rojo / Southern elephant seal (Mirounga leonina) female with camera and transmitter. Caleta Valdes, Valdes Peninsula, Chubut, Patagonia, Argentina.
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Gabriel Rojo / Southern elephant seal (Mirounga leonina) male and female with camera and transmitter. Caleta Valdes, Valdes Peninsula, Chubut, Patagonia, Argentina.
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Gabriel Rojo / Southern elephant seal (Mirounga leonina) female with camera and transmitter. Caleta Valdes, Valdes Peninsula, Chubut, Patagonia, Argentina.
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Jeff Rotman / Scientists and volunteers watching Leatherback turtle (Dermochelys coriacea) with satellite transmitter cover her nest before returning to sea, Tortuguero National Park, Costa Rica.
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Tui De Roy / Okarito Brown Kiwi (Apteryx rowi) two week chick 'J' with transmitter emerging from burrow. Okarito Forest, Westland, South Island, New Zealand, endemic.
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David Tipling / Al Dawes of the Great Bustard Group fitting a radio transmitter to a Great Bustard (Otis tarda) in preparation for release on to Salisbury Plain, Wiltshire, September 2010
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Suzi Eszterhas / Brown throated Three-toed Sloth (Bradypus variegatus) having 'daily diary' transmitter attached by research student, Rebecca Cliffe, Aviarios Sloth Sanctuary, Costa Rica. Model released